The effect of castration on some muscles of red deer(<i>Cervus elaphus</i> L.).

Tan, G. Y.; Fennessy, P. F.

doi:10.1080/00288233.1981.10420863

Cited by 17 publications

(8 citation statements)

References 2 publications

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“…On the other hand, although no differences were observed in the absolute weights of the biceps brachii of castrated and intact males, comparison using the muscle mass index indi cated that the lack of difference was due to the greater body weight of castrated males and that the muscle mass of the biceps brachii, which is a postural muscle of the forelimb, was actually greater in intact than in castrated males. This agrees with observations in cattle [24.38], red deer [39] and rats [22] that castration resulted in inhibition of muscle development. However, the present observations on the triceps brachii (a postural muscle of the forelimb), and the soleus and tibialis cranialis (postural and non-postural mus cles of the hindlimbs.…”

Section: Discussionsupporting

confidence: 82%

Comparison of the Effect of Castration on the Development of Postural and Non-Postural Muscles of Mice

Ihemelandu

Ibebunjo²

1992

Cells Tissues Organs

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The effect of castration on the development of muscle mass of postural and non-postural muscles was studied in 18 male mice (9 castrated, 9 uncastrated). Results obtained indicated that the castrated males grew faster and were bigger in body size and weight at maturity than the intact males. The bigger body size of castrated males was not due to larger muscle mass but was probably due to increased subcutaneous fat deposition. Atrophy of muscles usually observed following castration was significantly greater in the non-postural (biceps brachii) muscle of the forelimb as compared to the postural (triceps brachii) muscle of the forelimb. Conversely, the amount of reduction in muscle mass was similar in both postural (soleus) and non-postural (tibialis cranialis) muscles of the hindlimb.

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Section: Discussionsupporting

confidence: 82%

Comparison of the Effect of Castration on the Development of Postural and Non-Postural Muscles of Mice

Ihemelandu

Ibebunjo²

1992

Cells Tissues Organs

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“…This also concurs with the shift in muscle distribution observed in comparisons between castrate and entire deer where castrate forequarter muscle was proportionately 7% lighter and hindquarter muscle was proportionately 7% heavier than in entire males (Tan & Fennessy 1981). Rams have also been shown to have higher proportions of their muscle in the neck and shoulder compared with ewes (Taylor et al 1989).…”

Section: Tissue Distribution Comparisonssupporting

confidence: 71%

Carcass composition comparison of male and female red deer and hybrids with Père David's deer

Goosen

Fennessy

Pearse

1999

New Zealand Journal of Agricultural Research

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The carcass composition of male and female red deer and 1/4 Père David's deer hybrids were compared. Males had significantly more total carcass muscle and total carcass bone (P < 0.01), but significantly less total carcass fat and intramuscular fat in the longissimus dorsi (P < 0.01) than females when compared at the regressed mean hot carcass weight of 72.9 kg (19-20 months of age). Genotype differences were significant for muscle distribution with hybrids having relatively more muscle in the hind leg primal cut compared with red deer. Gender differences in muscle, bone, and fat tissue distribution were also evident with males having relatively more fat and bone in the neck and shoulder primal cuts. Père David's deer Received 26 January 1999; accepted 19 July 1999 hybrids have significantly different muscle tissue distribution than red deer, which may be indicative of a major gene effect similar to double-muscling observed in cattle and callipyge in sheep. A99006

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“…The normal hypertrophy of the neck muscles and associated changes in muscle distribution which occurs for deer going into the rut was absent in the castrated males, supporting the contention of Field et al (1985) that testosterone has a direct effect on specific muscles at this time. Tan and Fennessy (1981) demonstrated the effect of castration on individual muscles in red deer, with the greatest changes (between castrated and entire males) being for the m. splenius in the neck region, but also reductions in relative growth of some of the major muscles in the hind limb. Tan and Fennessy (1981) demonstrated the effect of castration on individual muscles in red deer, with the greatest changes (between castrated and entire males) being for the m. splenius in the neck region, but also reductions in relative growth of some of the major muscles in the hind limb.…”

Section: Effects Of Castrationmentioning

confidence: 99%

Carcass composition in male fallow deer: age and castration effects on dissected tissue distribution

Hogg¹,

Catcheside²,

Mercer³

1990

Anim. Sci.

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Twenty-eight male fallow deer (Dama dama), 14 entire and 14 castrated (seven each 1-and 2-year-old) were slaughtered and their carcasses jointed. Each joint was separated into venison, trim A (low visible fat, diced pieces), trim B (pieces suitable only for mincing), waste and bone. Castration had a significant and cumulative effect on live and carcass weights. At 1 year of age castrated males were 80 g/kg lighter in live weight; at 2 years this difference had increased to 119 g/kg. The pattern for differences in hot and cold carcass weights was similar, being 66 and 148 g/kg lighter at 1 and 2 years old, respectively.Castration caused small but significant shifts in the proportions of the primal joints, and the proportions of venison, trim A and trim B. Castrated males had smaller neck (9 g/kg) and saddle (10 g/kg) joints, but 18 g/kg larger legs. In the whole carcass they contained 12 g/kg more venison, but correspondingly less trim A and trim B.Older animals had higher proportions of venison and lower proportions of bone. Venison distribution altered with age, but this was mainly a reflexion of changes in joint proportions.The overall effect of castration was to reduce carcass weights (on which producers are paid) and reduce venison production proportionately to 0-97 and 0-88 of that achieved in 1-and 2-year-old entire males respectively. In some market situations castration may be an acceptable method of producing venison outside of the normal peak production, but the reduced production would require higher schedule prices to be economically viable for the producer.

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The effect of castration on some muscles of red deer(Cervus elaphus L.).

Cited by 17 publications

References 2 publications

Comparison of the Effect of Castration on the Development of Postural and Non-Postural Muscles of Mice

Comparison of the Effect of Castration on the Development of Postural and Non-Postural Muscles of Mice

Carcass composition comparison of male and female red deer and hybrids with Père David's deer

Carcass composition in male fallow deer: age and castration effects on dissected tissue distribution

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